Preheat your oven to 375°F. This ensures that the chicken cooks evenly and thoroughly, giving it a beautiful golden hue.
Pat the chicken dry using paper towels. Season both sides generously with Kosher salt and freshly ground black pepper. This step is crucial as it enhances the flavor of the chicken and helps achieve a nice sear.
In a large oven-safe skillet, heat olive oil over medium-high heat. Ensure the skillet is hot enough before adding the chicken so that it sears beautifully.
Carefully place the seasoned chicken in the skillet. Sear both sides until they turn a lovely golden brown, which should take about 2 to 4 minutes per side. This step locks in the juices, ensuring tender chicken every time.
While the chicken is searing, take a medium bowl and whisk together honey, Dijon mustard, whole grain mustard, chicken broth, garlic, and thyme. This mixture will become the luscious sauce for our Honey Mustard Chicken.
Once the chicken is seared, pour the mustard sauce over the top. Use a pastry brush to spread it evenly, ensuring that every bite will be packed with flavor.
Transfer the skillet to the preheated oven. Bake for 15 to 25 minutes, or until the chicken is cooked through. Smaller pieces will cook faster, so keep an eye on them!
To check for doneness, use an instant-read thermometer. The internal temperature should reach 165°F. This ensures that your chicken is safely cooked and ready to be enjoyed.
Once done, remove the skillet from the oven and let the chicken rest for a few minutes. This step allows the juices to redistribute, resulting in a juicier bite.
Finally, serve your Honey Mustard Chicken warm, drizzled with the remaining sauce from the skillet. Enjoy!